Flushing-tank



J. GREENHALGH.

FLUSHING TANK (No Model.)

.ZA/'VENTURI @a/M www@ UNITED STATES PATENT OFFICE.

JAMES GREENHALGH, OF VOONSOOKET, RHODE ISLAND, ASSIGNOR OF ONE- HALF TO JOHN B. GREENHALGH, OF BLAOKSTONE, MASSACHUSETTS.

FLUSHlNG-TANK.

SPECIFICATION forming part of Letters Patent No. 440,589, dated November 11, 1890.

Application filed July 2, 1890. Serial No. 357,552. (No model.)

T a/ZZ whom t may concern/.-

Be it known that I, J AMES GREENHALGH, of lNToonsocket, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Flushing-Tanks; and I hereby declare that the following is a full, clear, and exact description of the saine, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to improvements in the valves for controlling the supply to and the ilow of water from the Hushin g-tank usually connected with water-closets.

The invention consists in the peculiar and novel construction of the valve-operating devices, as will be more fully set forth hereinafter.

The object of this invention is to construct a flushing-valve so that the area of the overflow-tube may be of any desired size independent of the flushing-valve.

Another object of the invention is to construct the operative parts of the flushingvalve so that the same can be used for a pan or a washout closet; and another Vobject'of the invention is to construct the water-supply valve so that the water-sup ply can be regulated and controlled more readily.

Similar numbers of reference indicate corresponding parts.V

Figure 1 is alongitudinal section of a Hushing-tank, showing the supply and the iiushing valves. The iiushin g-valve and its operating-lever are shown in the closed position in solid lines and in the open position in broken lines. Fig. 2 is a transverse section through the overflow-tube and the pipe and piston by which the slow closing of the flushing-valve is controlled. Fig. 3 is a section of part of the iiushing-tank transverse to and in the rear of the section shown in Fig.

In the drawings, the number 5 indicates the bottom and 6 the sides of a flushingtank.

7 indicates the water-supply pipe; S, the supply-valve casing; 9, the outlet; 10, the tube or neck of the supply-valve, and 11 the stein of the valve.

The valve is of the kind used on watergages for steam boilers, in which a valvedisk is provided with a valve-stem opened by pushing against the projecting outer end of vthe annular valve-seat 21.

the valve-stem. The end 12 of the operating-lever 13 is hinged in the bracket 14, adjustably secured to the tube by a clamp- 5 5 screw. The ball-lever 15 is pivotally connected with the lever 13, and is hinged in the adjustable bracket 14, secured to the tube 10 by a clamp -screw. For the purpose of adjustment the ball-lever 15 is provided with a 6c number of holes 17, in, any one of which the pivot connecting the lever with the bracket 16 may be secured. The brackets 14 and 16 can be rnoved on the tube 10, so as to adjust the levers 13 and 15. The flushing-water is 65 discharged through the T-shaped casting 18, connected at its lower end with the dischargepipe 19 and at its upper end with the overflowtube 20. The lateral opening forming the flushing-outlet from the tank is provided with 7o The valve 22 controls the fiow ot' water through this lateral outlet. The valve is secured to the lower end of the lever 23, provided at its upper end with the diagonal oppositely-inclined Way 24, and is pivoted at 25. The pin 26 extends through the slot or way 24, and is secured in the weight 27, forming one end of the operating-lever 28,

to the other endof which thechain 29 is secured, the lever 28 being pivoted at or near its cen- 8o ter on the bracket 30. As seen in Fig. 1, the slot or way 24 extends obliquely to the right for half its length, and then obliquely to the left the other half of its length. When the weighted end of the lever28 is raised, by pull- 35 ing on the chain 29, into the position shown in broken lines, the pin 26 has traversed half the length of the way 24, and the valve 22 is open, permitting the flushing-water to enter the discharge-pipe 19 through the valve-open- 9o ing 21. The weighted end of the lever 28 may now be raised and the pin 26 pass upward through the upper half of the way 24, and thus close the Valve 22, or it may be allowed to descend, and thus close the valve 22. In a pan-closet water is retained in the bowl by the pan. A valve that supplies the water when the pan is dumped and closes slowly to iill the pan after it is again in place is all that is required; but in a washout-closet, and parroo ticularly when the chain 29 is connected with the hinged seat of the closet, it is desirable to open the flushing-valve when the closet is iirst occupied and secure a large quantity,

gradually diminishing after use, 'to wash out the closet, and this latter operation is effected by the peculiar oblique form in opposite directions of the way 24. When now a simple flushing is required, the pin 31 is placed in the hole 32 to form a stop for the lever 28, so that the weighted end of the same cannot be raised higher than it is shown in broken lines in Fig. 1. The descent of the weight 27 on the end of the lever 28 is controlled by means of an air-pump, consisting of the rod 33, connected at its lower end with the loosely-fitting piston 34 and at its upper end to the slotted arm 35, extending from the weight 27, the piston moving in the tube 36, the open upper end of which extends above the tank.

To the bracket is pivotally secured the hooked arm 37, having the weight 38 projecting from one side of the pivot, and the arm 39, the outer end of which is secured to the ball-lever 15 from the opposite side of the pivot and hooked arm 37. The hooked arm 37, with the weight and connection with the ball-lever, forms an auxiliary device used when it is desirable to secure a more thorough ushing of a Water-closet, the operation of which is as follows: Vhen the operating-lever is raised to the point indicated by broken lines in Fig. 1, or above this point, the hook of the arm 37 passes under the lever 28 and holds the same, so as to prevent the descent of the weight 27 and the pin 26 below the position shown occupied by all the parts in broken lines. As the valve 22 is in that position wide open,the Water is freely discharged from the tank. The ball-lever follows the water until the chain 40 exerts a strain on the arm 39, and thus draws the hook of the arm 37 away from the lever 28. The weight 27 now descends and closes the valve 22.

Having thus described my invention, I

claim as new and desire to secure by Letters 1. The combination,with the supply-pipe 7 of a iiushing-tank, the valve-casing 8, and

outlet 9, of the tube 10, the valve-stem 11,the

ball-lever 15 and lever 13, and the adjustable brackets 14 and 16, constructed to adjust the water-supply, as described.

2. The combination, with the supply-valve, the flushing-tank, and the ball-lever 15,0f the valve 22, Athe pivoted lever 23, having the valve 22 at its lower end, the upper end provided with the oppositely-inclined way24, the lever 28, provided with the chain 29 at one end and the weight 27 at the other end, the pin 26, and the hooked arm 37, connected with the ball-lever 15, pivoted to the fixed bracket 30 and constructed to hold the valve-operating device until the desired quantity of water has been discharged, as described.

3. The combination, with the tank, the outlet-pipe 19, the casting 18, the overflow-tube 20, and the lateral outlet provided with the valve-seat 21, of the valve 22, the pivoted lever 23, having the valve 22 at its lower end, provided with the oppositely-inclined way 24, the operating-lever 28, having the weight 27, provided with the pin 26 and arm 35 at one end and the chain 29 at the opposite end, the tube 36, plunger 34, and rod 33, constructed to retard the descent of the weight 27 and the closing of the valve, as described.

4. The combination, with a dushing-tank and an overflow-tube connected with the discharge-pipe provided with a lateral iiushinginlet, of avalve secured to the lower end of a pivoted lever, the upper end of which is provided with an inclined Way and operatinglever, constructed to control the laterali-lushing-inlet, a weighted hooked arm pivoted on a fixed bracket, arranged to hold the valve in the open position, and a ball-lever connected with the hooked arm, the whole constructed to discharge a xed quantity of water from the tank before the flushing-valve is released and permitted to close the outlet, as described.

JAMES GREENHALGH.

Witnesses:

J. A. MILLER, J r., M. F. BLIGH. 

